Furmanchuk, D. 2026. Ways and Forms of Action of the Kholodnyi Yar Insurgent Formations in the Struggle Against Russian-Bolshevik Occupiers (1919–1921). Social Development and Security. 16, 2 (Apr. 2026), 358-373. DOI:https://doi.org/10.33445/sds.2026.16.2.29.